McIntosh MA7000

Designed to deliver a continuous 250 watts per channel, the MA7000 Integrated Amplifier is the most powerful integrated amplifier McIntosh has ever offered. The MA7000 leads an already impressive array of McIntosh integrated amplifiers delivering uncompromised performance in a convenient, single-box solution. The MA7000 employs the famous McIntosh Autoformer. Designed and manufactured exclusively by McIntosh, the Autoformer helps the MA7000 deliver optimum performance with any loudspeaker. Whether your speakers are 2, 4, or 8 ohms the McIntosh Autoformer ensures that you will always get all of the power that you have paid for.

MA7000 Integrated Amplifier Features

EXCLUSIVE MCINTOSH POWER ASSURANCE SYSTEM
A collection of technologies that enhance performance and reliability while protecting the amplifier and loudspeakers.

POWER GUARD®
A waveform comparison circuit continuously monitors both input and output signals. Power Guard dynamically adjusts the input level to avoid clipping while preventing harsh sounding distortion.

SENTRY MONITOR®
Fuse-less short-circuit protection circuit disengages the output stage before current exceeds safe operating level – resets automatically.

OUTPUT AUTOFORMER
Unique McIntosh technology delivers the full rated amplifier output with the least possible distortion into loudspeaker impedances of 2, 4, or 8 ohms; you get all the power you paid for and the freedom to choose any loudspeaker.

WATTMETER
Swift, accurate response reveals program peaks so staying within the power limits of your loudspeakers is easy.

MA7000 Integrated Amplifier Specifications

POWER OUTPUT
250 watts is the minimum sine wave continuous average power output per channel, both channels operating

OUTPUT LOAD IMPEDANCE
2, 4 or 8 ohms

RATED POWER BAND
20Hz to 20,000Hz

TOTAL HARMONIC DISTORTION
0.005% maximum with both channels operating
from 250 milliwatts to rated power, 20Hz to
20,000Hz

DYNAMIC HEADROOM
2.0dB

FREQUENCY RESPONSE
+0, -0.5dB from 20Hz to 20,000Hz
+0, -3dB from 10Hz to 100,000Hz

PREAMPLIFIER MAIN OUTPUT
(FOR RATED INPUT)
2.5V unbalanced (8V Maximun)
5.0V balanced (16V Maximun)

SENSITIVITY (FOR RATED OUTPUT)
High Level, 250mV unbalanced, 500mV balanced Phono, 1.2 mV Power Amp In, 2.5V

SIGNAL TO NOISE RATIO (A-WEIGHTED)
High Level, 100dB below rated output Phono, 84dB below 5mV input Power Amplifier, 115 below rated output

INTERMODULATION DISTORTION
0.005% maximum, if the instantaneous peak power is 500 watts or less per channel with both channels
operating for any combination of frequencies from 20Hz to 20,000Hz

WIDE BAND DAMPING FACTOR
Greater than 40

MAIN OUTPUT IMPEDANCE
50 ohms

INPUT IMPEDANCE
High Level, 20K ohms Phono, 47K ohms; 65pF Power Amp In, 10K ohms

MAXIMUM INPUT SIGNAL
High Level, 8V unbalanced, 16V balance

POWER GUARD
Less than 2% THD with up to 16dB overdrive at 1,000Hz

VOLTAGE GAIN
High Level to Rec Output: 0dB
High Level to Main Output: 20dB
Phono to Rec Output: 46dB
Phono to Main Output: 66dB
Power Amplifier: 25dB

EQUALIZER CONTROLS
Variable 12dB boost to 12dB cut at 30Hz, 150Hz, 500Hz, 1500Hz and 10,000Hz

POWER REQUIREMENTS
240 Volts, 50/60Hz at 3.3 amps
Standby: Less than 1 watt

OVERALL DIMENSIONS (H X W X D) INCLUDING THE FEET AND FRONT PANEL KNOBS AND CABLES
Width is 17-1/2 inches (44.45cm) 9-7/16 inches (23.97cm), 17-1/2 inches (44.45cm) x 22 inches (55.88cm)

WEIGHT
97.5 pounds (44.3 kg) net
130.5 pounds (59.2 kg) in shipping carton